CN110922911A - Thermochromic temperature-indicating protective film and adhesive tape - Google Patents
Thermochromic temperature-indicating protective film and adhesive tape Download PDFInfo
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- CN110922911A CN110922911A CN201911005154.9A CN201911005154A CN110922911A CN 110922911 A CN110922911 A CN 110922911A CN 201911005154 A CN201911005154 A CN 201911005154A CN 110922911 A CN110922911 A CN 110922911A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/50—Adhesives in the form of films or foils characterised by a primer layer between the carrier and the adhesive
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/26—Thermosensitive paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/24—Plastics; Metallised plastics based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/241—Polyolefin, e.g.rubber
- C09J7/243—Ethylene or propylene polymers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/255—Polyesters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
- C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/385—Acrylic polymers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/302—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2423/00—Presence of polyolefin
- C09J2423/10—Presence of homo or copolymers of propene
- C09J2423/106—Presence of homo or copolymers of propene in the substrate
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2433/00—Presence of (meth)acrylic polymer
- C09J2433/003—Presence of (meth)acrylic polymer in the primer coating
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2467/00—Presence of polyester
- C09J2467/006—Presence of polyester in the substrate
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2475/00—Presence of polyurethane
- C09J2475/003—Presence of polyurethane in the primer coating
Abstract
The invention belongs to the technical field of adhesive tapes, protective films and thermochromic temperature indicating materials, and particularly relates to a thermochromic temperature indicating protective film and an adhesive tape, which comprise a plastic base material, a thermochromic functional layer and a release film which are sequentially distributed from bottom to top, wherein the thermochromic functional layer is coated and fixed on one side surface of the plastic base material, a pressure-sensitive adhesive is coated between the thermochromic functional layer and the release film, and the thermochromic functional layer and the release film are fixedly bonded through the pressure-sensitive adhesive; the reversible thermochromic temperature-indicating pressure-sensitive adhesive tape or the protective film can be used as a decorative material besides the temperature measuring function, and can display different colors at different temperatures with pleasant effect.
Description
Technical Field
The invention belongs to the technical field of adhesive tapes, protective films and thermochromic temperature indicating materials, and particularly relates to a thermochromic temperature indicating protective film and an adhesive tape.
Background
The temperature indicating material is a special functional material which utilizes thermochromism of a color-changing filler to measure the temperature and the temperature distribution of an object, is also called as a color-changing material or a thermosensitive material, changes the color when the material is heated to a certain temperature, shows a new color, and can recover the original color when the temperature is reduced.
At present, people want to obtain the temperature change of an object, usually a thermometer or an electronic thermometer is used for detecting, but a material for combining a pressure sensitive adhesive material and a temperature indicating material does not appear, and a temperature indicating material combining adhesive tape is used for being stuck on the surface of the object to reflect the temperature change of the object, so that the temperature change of the object is more convenient.
Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides a thermochromic temperature indicating protective film and an adhesive tape, which have the characteristics of easiness in preparation and convenience in use.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a thermochromism temperature-indicating protection film and sticky tape, includes by lower supreme plastic substrate, the temperature-indicating functional layer that distributes in proper order and from the type membrane, the coating of temperature-indicating functional layer is fixed a side of plastic substrate, the temperature-indicating functional layer with from the coating of having pressure-sensitive adhesive between the type membrane, the temperature-indicating functional layer with pass through from the type membrane pressure-sensitive adhesive bonding is fixed.
Preferably, the temperature indicating functional layer is a mixture of film-forming resin and thermal temperature indicating powder.
The manufacturing method of the thermochromic temperature indicating protective film and the adhesive tape is characterized in that: the method comprises the following steps:
step S1, mixing the thermotropic temperature indicating powder with film forming resin, and coating the obtained mixture on the outer surface of one side of the plastic base material;
step S2, uniformly coating the pressure-sensitive adhesive on the surface of the mixture;
and S3, finally, attaching the release film to the outer surface of the pressure-sensitive adhesive to obtain the thermochromic temperature-indicating protective film and the adhesive tape.
Preferably, the plastic substrate is one of polyethylene, polypropylene, polyvinyl chloride, polyolefin, polyester and polyimide film with the thickness of 5-150 μm.
Preferably, the film-forming resin is one of polyacrylate, polyurethane, organic silicon and epoxy resin, and the thermotropic temperature indicating powder is one or more of Ag2HgI4, Cu2HgI4 and HgI 2.
Preferably, the pressure-sensitive adhesive is one of polyacrylate pressure-sensitive adhesive, polyurethane pressure-sensitive adhesive, organic silicon pressure-sensitive adhesive and rubber pressure-sensitive adhesive with the thickness of 2-50 microns.
Preferably, the release film is one of a silicon-based release film or release paper with the thickness of 5-50 μm, a fluorine-based release film or release paper, and a non-silicon non-fluorine-based release film or release paper.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, a proper pressure-sensitive adhesive, a proper plastic base material and a proper temperature indicating material can be selected according to the surface condition and the temperature range of an object to be measured, when the temperature-sensitive adhesive tape is used, the release film is torn off, the pressure-sensitive adhesive layer is attached to the surface of the material to be measured, the temperature and the distribution condition of the object to be measured can be judged according to the displayed color, besides the temperature measurement function, the reversible thermochromism temperature-indicating pressure-sensitive adhesive tape or the protective film can be used as a decorative material, different colors can be displayed at different temperatures, and the effect is pleasant.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of a thermochromic temperature indicating protective film and an adhesive tape according to the present invention.
In the figure: 1. a plastic substrate; 2. a temperature indicating functional layer; 3. a pressure sensitive adhesive; 4. and (4) a release film.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1, the present invention provides the following technical solutions: the utility model provides a thermochromism temperature-indicating protection film and sticky tape, includes by lower supreme plastic substrate 1 that distributes in proper order, temperature-indicating functional layer 2 and from type membrane 4, and the coating of temperature-indicating functional layer 2 is fixed in the side of plastic substrate 1, and temperature-indicating functional layer 2 and from the coating between type membrane 4 have pressure-sensitive adhesive 3, and temperature-indicating functional layer 2 with from type membrane 4 through pressure-sensitive adhesive 3 bonding fixation.
Specifically, the temperature indicating functional layer 2 is a mixture of a film forming resin and a thermotropic temperature indicating powder.
The manufacturing method of the thermochromic temperature indicating protective film and the adhesive tape comprises the following steps:
step S1, mixing the thermotropic temperature indicating powder with the film forming resin, and coating the obtained mixture on the outer surface of one side of the plastic base material 1;
step S2, uniformly coating the pressure-sensitive adhesive 3 on the surface of the mixture;
and step S3, finally, attaching the release film 4 to the outer surface of the pressure-sensitive adhesive 3 to obtain the thermochromic temperature-indicating protective film and the adhesive tape.
Specifically, the plastic substrate was 36 μm polyester.
Specifically, the film-forming resin is polyacrylate, and the thermotropic temperature indicating powder is Ag2HgI 4.
Specifically, the pressure-sensitive adhesive is 2 mu m polyacrylate pressure-sensitive adhesive.
Specifically, the release film is a 50 μm silicon-based release film.
In the embodiment, a temperature indicating functional layer 2 (80%: 20% of alcohol-soluble polyacrylate film-forming resin and Ag2HgI4 by weight) with the dry weight of 30g/m2 is coated on a polyester PET plastic substrate 1 with the thickness of 36 mu m, polyacrylate pressure-sensitive adhesive 3 with the dry weight of 10g/m2 is coated on the temperature indicating functional layer 2, and finally a PET silicon-based release film 4 with the dry weight of 50 mu m is compounded on the pressure-sensitive adhesive 3 to obtain the reversible thermochromic temperature-indicating pressure-sensitive protective film, wherein the protective film shows yellow at the temperature of 50 ℃ and orange at the temperature of more than 50 ℃.
Example 2
Referring to fig. 1, the present invention provides the following technical solutions: the utility model provides a thermochromism temperature-indicating protection film and sticky tape, includes by lower supreme plastic substrate 1 that distributes in proper order, temperature-indicating functional layer 2 and from type membrane 4, and the coating of temperature-indicating functional layer 2 is fixed in the side of plastic substrate 1, and temperature-indicating functional layer 2 and from the coating between type membrane 4 have pressure-sensitive adhesive 3, and temperature-indicating functional layer 2 with from type membrane 4 through pressure-sensitive adhesive 3 bonding fixation.
Specifically, the temperature indicating functional layer 2 is a mixture of a film forming resin and a thermotropic temperature indicating powder.
The manufacturing method of the thermochromic temperature indicating protective film and the adhesive tape comprises the following steps:
step S1, mixing the thermotropic temperature indicating powder with the film forming resin, and coating the obtained mixture on the outer surface of one side of the plastic base material 1;
step S2, uniformly coating the pressure-sensitive adhesive 3 on the surface of the mixture;
and step S3, finally, attaching the release film 4 to the outer surface of the pressure-sensitive adhesive 3 to obtain the thermochromic temperature-indicating protective film and the adhesive tape.
Specifically, the plastic substrate was 36 μm polypropylene.
Specifically, the film-forming resin is polyurethane, and the thermotropic temperature indicating powder is Cu2HgI 4.
Specifically, the pressure-sensitive adhesive is 25 μm polyurethane pressure-sensitive adhesive 3.
Specifically, the release film is a 50 μm silicon-based release film or release paper.
In the embodiment, a temperature indicating functional layer 2 (the weight ratio of the water-based polyurethane film-forming resin to the Cu2HgI4 is 70%: 30%) with a dry weight of 30g/m2 is coated on a polypropylene PP plastic substrate 1 with a thickness of 36 μm, and then a polyurethane pressure-sensitive adhesive 3 with a dry weight of 20g/m2 is coated on the temperature indicating functional layer 2, so that the reversible thermochromic temperature-indicating pressure-sensitive adhesive tape is prepared, wherein the tape displays magenta at 71 ℃ and reddish brown at above 71 ℃.
Example 3
Referring to fig. 1, the present invention provides the following technical solutions: the utility model provides a thermochromism temperature-indicating protection film and sticky tape, includes by lower supreme plastic substrate 1 that distributes in proper order, temperature-indicating functional layer 2 and from type membrane 4, and the coating of temperature-indicating functional layer 2 is fixed in the side of plastic substrate 1, and temperature-indicating functional layer 2 and from the coating between type membrane 4 have pressure-sensitive adhesive 3, and temperature-indicating functional layer 2 with from type membrane 4 through pressure-sensitive adhesive 3 bonding fixation.
Specifically, the temperature indicating functional layer 2 is a mixture of a film forming resin and a thermotropic temperature indicating powder.
The manufacturing method of the thermochromic temperature indicating protective film and the adhesive tape comprises the following steps:
step S1, mixing the thermotropic temperature indicating powder with the film forming resin, and coating the obtained mixture on the outer surface of one side of the plastic base material 1;
step S2, uniformly coating the pressure-sensitive adhesive 3 on the surface of the mixture;
and step S3, finally, attaching the release film 4 to the outer surface of the pressure-sensitive adhesive 3 to obtain the thermochromic temperature-indicating protective film and the adhesive tape.
Specifically, the plastic substrate is 50 μm polyester.
Specifically, the film-forming resin is polyurethane, and the thermotropic temperature indicating powder is HgI 2.
Specifically, the pressure-sensitive adhesive is one of polyacrylate pressure-sensitive adhesive, polyurethane pressure-sensitive adhesive, organic silicon pressure-sensitive adhesive and rubber pressure-sensitive adhesive with the thickness of 2 microns.
Specifically, the release film is a 50 μm fluorine release film 4.
In the embodiment, a temperature indicating functional layer 2 (the weight ratio of alcohol-soluble polyurethane film-forming resin to HgI2 dry weight is 70%: 30%) with a dry weight of 40g/m2 is coated on a polyester PET plastic film material 1 with a thickness of 50 μm, then an organic silicon pressure sensitive adhesive 3 with a dry weight of 20g/m2 is coated on the temperature indicating functional layer 2, and finally a fluorine PET release film 4 with a dry weight of 50 μm is compounded on the pressure sensitive adhesive 3 to obtain the reversible thermochromic temperature indicating pressure sensitive protective film, wherein the protective film shows red at 137 ℃ and blue at more than 137 ℃.
Example 4
Referring to fig. 1, the present invention provides the following technical solutions: the utility model provides a thermochromism temperature-indicating protection film and sticky tape, includes by lower supreme plastic substrate 1 that distributes in proper order, temperature-indicating functional layer 2 and from type membrane 4, and the coating of temperature-indicating functional layer 2 is fixed in the side of plastic substrate 1, and temperature-indicating functional layer 2 and from the coating between type membrane 4 have pressure-sensitive adhesive 3, and temperature-indicating functional layer 2 with from type membrane 4 through pressure-sensitive adhesive 3 bonding fixation.
Specifically, the temperature indicating functional layer 2 is a mixture of a film forming resin and a thermotropic temperature indicating powder.
The manufacturing method of the thermochromic temperature indicating protective film and the adhesive tape comprises the following steps:
step S1, mixing the thermotropic temperature indicating powder with the film forming resin, and coating the obtained mixture on the outer surface of one side of the plastic base material 1;
step S2, uniformly coating the pressure-sensitive adhesive 3 on the surface of the mixture;
and step S3, finally, attaching the release film 4 to the outer surface of the pressure-sensitive adhesive 3 to obtain the thermochromic temperature-indicating protective film and the adhesive tape.
Specifically, the plastic substrate was 36 μm polypropylene.
Specifically, the film-forming resin is polyurethane, and the thermotropic temperature indicating powder is Cu2HgI 4.
Specifically, the pressure-sensitive adhesive is 25 μm polyurethane pressure-sensitive adhesive 3.
Specifically, the release film is a 25 μm silicon-based release film 4.
In the embodiment, a temperature indicating functional layer 2 (the weight ratio of the water-based polyurethane film-forming resin to the Cu2HgI4 is 70%: 30%) with a dry weight of 30g/m2 is coated on a polypropylene PP plastic substrate 1 with a thickness of 36 μm, and then a polyurethane pressure-sensitive adhesive 3 with a dry weight of 20g/m2 is coated on the temperature indicating functional layer 2, so that the reversible thermochromic temperature-indicating pressure-sensitive adhesive tape is prepared, wherein the tape displays magenta at 71 ℃ and reddish brown at above 71 ℃.
Example 5
Referring to fig. 1, the present invention provides the following technical solutions: the utility model provides a thermochromism temperature-indicating protection film and sticky tape, includes by lower supreme plastic substrate 1 that distributes in proper order, temperature-indicating functional layer 2 and from type membrane 4, and the coating of temperature-indicating functional layer 2 is fixed in the side of plastic substrate 1, and temperature-indicating functional layer 2 and from the coating between type membrane 4 have pressure-sensitive adhesive 3, and temperature-indicating functional layer 2 with from type membrane 4 through pressure-sensitive adhesive 3 bonding fixation.
Specifically, the temperature indicating functional layer 2 is a mixture of a film forming resin and a thermotropic temperature indicating powder.
The manufacturing method of the thermochromic temperature indicating protective film and the adhesive tape comprises the following steps:
step S1, mixing the thermotropic temperature indicating powder with the film forming resin, and coating the obtained mixture on the outer surface of one side of the plastic base material 1;
step S2, uniformly coating the pressure-sensitive adhesive 3 on the surface of the mixture;
and step S3, finally, attaching the release film 4 to the outer surface of the pressure-sensitive adhesive 3 to obtain the thermochromic temperature-indicating protective film and the adhesive tape.
Specifically, the plastic substrate was 36 μm polyester.
Specifically, the film-forming resin is polyacrylate, and the thermotropic temperature indicating powder is Ag2HgI 4.
Specifically, the pressure-sensitive adhesive is 25 mu m polyacrylate pressure-sensitive adhesive.
Specifically, the release film is a 50 μm silicon-based release film.
In the embodiment, a temperature indicating functional layer 2 (80%: 20% of alcohol-soluble polyacrylate film-forming resin and Ag2HgI4 by weight) with the dry weight of 30g/m2 is coated on a polyester PET plastic substrate 1 with the thickness of 36 mu m, polyacrylate pressure-sensitive adhesive 3 with the dry weight of 10g/m2 is coated on the temperature indicating functional layer 2, and finally a PET silicon-based release film 4 with the dry weight of 50 mu m is compounded on the pressure-sensitive adhesive 3 to obtain the reversible thermochromic temperature-indicating pressure-sensitive protective film, wherein the protective film shows yellow at the temperature of 50 ℃ and orange at the temperature of more than 50 ℃.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A thermochromism temperature-indicating protective film and an adhesive tape are characterized in that: include by lower supreme plastic substrate (1), temperature indicating functional layer (2) that distribute in proper order and from type membrane (4), temperature indicating functional layer (2) coating is fixed a side of plastic substrate (1), temperature indicating functional layer (2) with from the coating pressure-sensitive adhesive (3) have between type membrane (4), temperature indicating functional layer (2) with pass through from type membrane (4) pressure-sensitive adhesive (3) bond fixedly.
2. The thermochromic temperature-indicating protective film and adhesive tape according to claim 1, wherein: the temperature indicating functional layer (2) is a mixture of film forming resin and thermal temperature indicating powder.
3. The method for manufacturing the thermochromic protective film and the adhesive tape according to claim 2, wherein the method comprises the following steps: the method comprises the following steps:
step S1, mixing thermotropic temperature indicating powder with film forming resin, and coating the obtained mixture on the outer surface of one side of the plastic base material (1);
step S2, uniformly coating the pressure-sensitive adhesive (3) on the surface of the mixture;
and S3, finally, attaching the release film (4) to the outer surface of the pressure-sensitive adhesive (3) to obtain the thermochromic temperature-indicating protective film and the adhesive tape.
4. The thermochromic temperature-indicating protective film and adhesive tape according to claim 1, wherein: the plastic base material is one of polyethylene, polypropylene, polyvinyl chloride, polyolefin, polyester and polyimide film with the thickness of 5-150 mu m.
5. The thermochromic temperature-indicating protective film and adhesive tape according to claim 2, wherein: the film-forming resin is one of polyacrylate, polyurethane, organic silicon and epoxy resin, and the thermotropic temperature indicating powder is one or more of Ag2HgI4, Cu2HgI4 and HgI 2.
6. The thermochromic temperature-indicating protective film and adhesive tape according to claim 1, wherein: the pressure-sensitive adhesive is one of polyacrylate pressure-sensitive adhesive, polyurethane pressure-sensitive adhesive, organic silicon pressure-sensitive adhesive and rubber pressure-sensitive adhesive with the thickness of 2-50 mu m.
7. The thermochromic temperature-indicating protective film and adhesive tape according to claim 1, wherein: the release film is one of 5-50 μm silicon series release film or release paper, fluorine series release film or release paper, and non-silicon non-fluorine series release film or release paper.
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CN113861473A (en) * | 2021-07-21 | 2021-12-31 | 江苏双星彩塑新材料股份有限公司 | Thermochromic polyester release film and preparation method thereof |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN113861473A (en) * | 2021-07-21 | 2021-12-31 | 江苏双星彩塑新材料股份有限公司 | Thermochromic polyester release film and preparation method thereof |
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